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Agilent Technologies 668xA Opc?, Opt?, Power-on Status Clear Device Initialization, PSC 0 *PSC

Models: 668xA 669xA 667xA 664xA 665xA

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*OPC?

*OPC?

Meaning and Type

Operation Complete Device Status

Description

This query causes the interface to place an ASCII "1" in the Output Queue when all pending operations are completed. Pending operations are as defined for the *OPC command. Unlike *OPC, *OPC? prevents processing of all subsequent commands. *OPC? is intended to be used at the end of a command line so that the application program can then monitor the bus for data until it receives the "1" from the power module Output Queue.

Do not follow *OPC? with *TRG or GPIB bus triggers. Such triggers sent after *OPC? will be prevented from executing and will prevent the power supply from accepting further commands. If this occurs, the only programmable way to restore operation is by sending the power supply a GPIB DCL (Device Clear) command.

Query Syntax	*OPC?
Returned Parameters	<NR1>	ASCII 1 is placed in the Output Queue when the
		power supply has completed operations.
Related Commands	OPC TRIG	*WAI

*OPT?

Meaning and Type

Option Identification Query

Description

This query requests the power supply to identify any options that are installed. Options are identified by number A. 0 indicates no options are installed.

Query Syntax	*OPT?
Returned Parameters	<AARD>
*PSC
Meaning and Type
Power-on Status Clear Device Initialization

Description

This command controls the automatic clearing at power turn-on of:

•The Service Request Enable register.

•The Standard Event Status Enable register.

If the command parameter = 1, then the above registers are cleared at power turn-on. If the command parameter = 0, then the above registers are not cleared at power turn-on but are programmed to their last state prior to power turn on. This is the most common application for *PSC and enables the power module to generate an SRQ (Service Request) at power on.

Command Syntax	*PSC <bool>
Parameters	0 1 OFF ON
Example	PSC 0 PSC 1
Query Syntax	*PSC?
Returned Parameters	<NR1> 0 1
Related Commands	ESE SRE

Language Dictionary 29

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Agilent Technologies 668xA, 665xA Opc?, Opt?, Power-on Status Clear Device Initialization, PSC 0 *PSC, Meaning and Type

Contents

Agilent Technologies Models 664xA, 665xA, 667xA, 668xA, and 669xA PROGRAMMING GUIDE GPIB DC POWER SUPPLIESAgilent Part No Microfiche Part NoPrinting History Safety GuidelinesGENERAL INFORMATION ContentsREMOTE PROGRAMMING LANGUAGE DICTIONARYSystem Commands Description of Subsystem CommandsCurrent Subsystem Display SubsystemSTATUS REPORTING ERROR MESSAGESSCPI CONFORMANCE INFORMATION COMPATIBILITY LANGUAGEPage About this Guide General InformationDocumentation Summary User’s GuideVXIplug&play Power Product Instrument Drivers Prerequisites for Using this GuideDownloading and Installing the Driver Accessing Online HelpRemote Programming GPIB Capabilities Of The Power SupplyIntroduction To SCPI ConventionsCommon Commands Types of SCPI CommandsSubsystem Commands SCPI MessagesParts of a SCPI Message Figure 2-1. Command Message StructureMessage Component ExampleQuery Indicator Traversing the Command TreeMessage Unit Separator Root SpecifierThe Effect of Optional Headers Figure 2-2. Partial Command Tree Active Header PathMoving Among Subsystems OUTPUTPROTECTIONCLEAR STATUSOPERATIONCONDITION?Symbol Including Common CommandsSCPI Queries Value Couplingcontrolled GPIB interfaces ExamplesListening Formats Table 2-2. Suffixes and MultipliersEnable the output Disable the outputControlling the Output Programming Voltage and CurrentProgramming Status Saving and Recalling StatesWriting to the Display The GPIB Address System ConsiderationsProgramming the Digital I/O Port Assigning the GPIB Address In Programs A stand-alone primary address and a direct primary addressA direct primary address and a secondary address DOS Drivers Error HandlingAgilent BASIC Controllers Sample Program Code‘ --------------- Merge SETUP.BAS here Programming Some Power Supply FunctionsController Using Agilent 82335A Interface 22 Remote Programming Programming Some Power Supply Functions continuedSPOL%=O Programming Some Power Supply Functions continuedIF SPOL% AND 128 = 128 THEN POLL = 1 Set interrupt flag on OPER bit FOR I=1 TO24 Remote Programming Programming Some Power Supply Functions continuedCommon Commands Related CommandsSubsystem Commands Language DictionaryFigure 3-1. Common Commands Syntax Diagram Description Of Common CommandsMeaning and Type Bit Configuration of Standard Event Status Enable RegisterDescription 0 toESR? Related CommandsIDN? Query SyntaxOPC? Power-on Status Clear Device InitializationOPT? PSC 0 *PSCDescription Meaning and TypeDescription Meaning and TypeMeaning and Type DescriptionSTB? Bit Configuration of Status Byte RegisterMeaning and Type DescriptionMeaning and Type TST?Description Meaning and TypeCalibration Commands Description of Subsystem CommandsFigure 3-2. Subsystem Commands Tree Diagram ABORCURR CURRTRIG Current SubsystemCURRPROTSTAT CURRENTLEVEL 200 MAPin Configuration1 Digital I/O Port Programming ChartConfiguration Display SubsystemDISPMODE DISPTEXT DEFAULTMODEDISPTEXT DISPMODE NORMMeasure Subsystem Initiate SubsystemINIT INITCONT MEASCURR? MEASVOLT?OUTPUTPROTDELAY MAX OUTPUTPROTECTIONDELAY 75E-1Output Subsystem OUTPOUTPRELPOL OUTPRELOUTPREL 1 OUTPREL OFF OUTPRELPOL NORMBit Weight Bit Configuration of Operation RegistersStatus Subsystem STATPRESSTATOPER NTR STATOPER PTR STATUSOPERATIONENABLE?STATOPERENAB Status Questionable Registers Bit Configuration of Questionable RegistersSTATQUES? STATQUESCOND?STATQUES NTR STATQUES PTR System CommandsSYSTERR? corresponding Questionable Event registerSYSTLANG Trigger SubsystemSYSTVERS? TRIGTRIGSOUR Voltage SubsystemVOLT VOLTTRIG VOLTAGELEVEL 200 MVCommand Summary Command SummaryCommand VOLTPROTCommand Summary Command ParametersCommand Subsystem CommandsTable 3-1. Power Supply Programming Parameters see note Characteristics in the Operating GuideProgramming Parameters ParameterPage Register Commands Power Supply Status StructureTable 4-1. Status Operation Commands Status ReportingSignal Table 4-2. Bit Configurations of Status RegistersFigure 4-1. Power Supply Status Model MeaningQuestionable Status Group Table 4-3. Status Questionable CommandsStandard Event Status Group CLS *ESR?Initial Conditions At Power On Service Request Enable RegisterDetermining the Cause of a Service Interrupt Status Byte RegisterServicing an Operation Status Mode Event The PON Power-On Bitinformation about encoding the commands as language strings Table 4-4. Default Power On Register StatesAdding More Operation Events Monitoring Both Phases of a Status TransitionServicing Questionable Status Events Table 4-5. Generating RQS from the CC EventDFI Discrete Fault Indicator SCPI Command CompletionRI Remote Inhibit Techniques in ANSI/IEEE StdPage Power Supply Hardware Error Messages Error MessagesCalibration Error Messages System Error MessagesError Table 6-1. Summary of System Error Messages continuedError String Description/Explanation/Examples 60 Error MessagesSCPI Approved Commands SCPI Confirmed Commands1SCPI Conformance Information SCPI VersionNON-SCPI Commands1 Compatibility Language ARPS Command1 Table B-1. ARPS CommandsSimilar SCPI CommandARPS Command1 Table B-1. ARPS Commands continuedCommand DescriptionARPS Command1 Table B-1. ARPS Commands continuedCommand DescriptionIndex 68 Index Page United States Agilent Sales and Support OfficeLatin America Canada